Ophthalmic mounting



. A. A. ARNOLD. OPHTHALMIC MOUNTING.-

APPLICATION HLED JAN. 2. 1913 v '1 ,347, 140, Patented July 20, 1920.

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ARTHUR A ARNOLD A 7708MB S UNITE'fi STATES PATENT OFFICE.

- To all whom it may concern:

ARTHUR A. ARNOLD, OF

OPTICAL COMPANY, or TIONV OF MASSACHUSETTS.-

OPH'I'HALlVIIC 'MO UN TIN G.

e it known that I, ARTHUR A. ARNOLD, a citizen of the United States, residing at Southbridge, in .the county of Vorcest'er and State of Massachusetts, have invented certain new and useful Improvements in Ophthalmic Mountings, of which the following is a specification.

This invention relates to new and useful improvements in ophthalmic mountings, and more particularly to novel'means for connecting several parts of the'mounting, the leading object in the present invention being the provision of novel means for connecting the meeting ends of a combination metallic and zyl frame.

Another object of the present invention is the provision of a connecting member portions of which are integrally connected with the Xylonite or non-metallic portion of the frame and the remaining portion being 'detachab'ly connected with the end plates of the frame whereby the metallic end plates can be readily detached from the frame when desired.

A still further object of the invention is the provision of novel the connecting plate to the Xylonite whereby portions of the Xylonite with the connecting plate to securely hold the plate against the end ofthe Xylonite portion of the frame and ma position whereby the same can be utilized for .detachably connecting with the ends of the frame.

Vit-h the above and other objects in view the invention consists in the novel features of rangement of parts hereinafter more fully set forth, pointed out in the claims and shown in the accompanying drawings, in which- Figure I is a front elevation of a pair of spectacles constructed in accordance with my invention. 4 M

F'g. II is a detailed perspective view of my invention.

Fig. III isa longitudinal sectional view of one end of the frame. I

Fig. IV is a transverse sectional view. Fig. V is a detailed perspective view of the connecting plate.

Fig. VI is a longitudinal sectional. view of one end of the frame, illustrating a slightly modified form of the invention, and;

Specification of Letters Patent.

' groove 3 and the ends ends of the means. of attaching I will be interlocked of. the frame 2, the

construction and the combination and ar- Patented July 20, 1920. Serial No. 310,031.

F ig. VII is a detailed perspective view of one of the connecting pins.

Fig. VIII is an enlarged sectional view through the end pieces and adjacent portions of the frame.

\eferrlng now more particularly to the drawings, the numeral 1 indicates a nose bridge connecting the lens frames 2. These lens frames are formed. of a metallic and a non-metallic section, the non-metallic section being preferably of xylonite, celluloid, ora simllar material, and includes the outer rim or casing of the frame, the innerface of which is provided with an arcuate groove 3 adapted to receive .themetallic'rim 4.

The metallic rim 4 is arranged within the tachably connected through the medium of the two plates 5 and 6, the plate 5 being provided with an opening 7 and extending therethrough is a threaded pin 8 which is forced intothe xylonite of one end of the frame in order to retain the plate 5 in position against the end plate 6 is connected to the frame through the medium of aconnecting member generally indicated by the numeral 9. This connecting member includes a substantially arcuate-shaped body portion 10 and extending at right angles from the body portion is a plate 11' provided with spaced openings 12. The body portion of this member '9 is-disposed against the end plate 11 fitting into the groove 3 of the Xylonite rim and in order to connect the plate 11 with the Xylonite, the plate is first heated before being on gaged with the xylonite so that the heat will tend to soften the Xylonite and as pres sure isapplied to the plate 11, the Xylonite will be forced through the openings 12. In order to prevent the Xylonite from passing through the openings to the outer surface of the plate 11, a solid surfa'ceis arranged against the outer face of the plate so that as the'xylonite is forced into the openings 12, it will be prevented from extending beof the frame. The the opposite end of yond the outer face of the plate and thus entirely fill the openings 12 and connect the of the rims are dethis member 9 is 2 the plate 6 and adapted to connect the plate- 6 with the end of the lens frame. It will be noted that the member 9 is of substantially arcuate form and the plate 11 is integrally a connected therewith and disposed centrally of the arc so that when the plate is arranged within the groove 3, the ends thereof will be disposed in alinementwith the ends of the arc defining the groove within the Xylonite rim; From this it will be apparent that the I have illustrated a slightlyimodifi'ed form of the invention wherein the screws is replaced by means of a pin 17 having formed thereon the outstanding wings 18 which, when the pin 17 is arranged in position, are adapted to be embedded within the xyloni'te' of the frame, as illustrated in the above mentioned figure, to securely retain the pin within the Xylo'nite and at the same time hold the plate 5 in its respective position. In this form of the invention the pin 17 is extended through the plate 5 and the pin either forced into the cold xylonite or saidpin is heated and forced into the xylonite 85 wherebythe wings 18 will become thoroughly embedded within the material so that I have provided a the position of the' that when the same cools it will withdrawal of the pin from the material. It will be apparent that this form of the invention can be used in place of the screw 8. It will be apparent from the foregoing device whereby the meeting ends of a lens frame can be quickly and readily connected or disconnected and further provided for novel means whereby the member 9 is readily connected with the xylonite portion of the frame 2. i

I claim:

1. An ophthalmic mounting including a.

metallic frame member, a non-metallic portion, and means for connecting the said parts, including an attaching plate having an upstanding perforated tongue and projections on the non-metallic member inter-' locking with the perforations on the tongue for connecting the partscm 2. In a device of-the character described,

prevent simple and d ablethe combination with a metallic frame .por-

tion and a non-metallic frame portion, of a connecting plate having a projecting tongue formed with countersunk apertures, the non-metallic member having headed projections locked within the countersunk apertures',and means for securing the plate to the metallic portion of the frame.

In testimony whereof I affix my signature in the presence of two witnesses.- ARTHUR A. ARNOLD. .Witnesses: H. E. COLEMAN,

A. S. OANN. 

